<template>
  <div class="singer">
    <ul class="singer-header">
      <li v-for="(item,index) in singerStyle" :key="index" @click="handleChangeView(item)"
          :class="{active:item.name==activeName}">
        {{item.name}}
      </li>
    </ul>
    <div>
      <content-list :contentList="data"></content-list>
      <div class="pagination">
        <el-pagination @current-change="handleCurrentChange" background layout="total,prev,pager,next"
                       :current-page="currentPage" :page-size="pageSize" :total="albumDatas.length">
        </el-pagination>
      </div>
    </div>
  </div>
</template>
<script>
  import ContentList from '../components/ContentList';
  import {getAllSinger,getSingerOfSex} from '../api/index';
  import {mixin} from "../mixins";
  import {singerStyle} from '../assets/data/singer';

  export default {
    name: 'singer',
    components:{
      ContentList
    },
    data(){
      return{
        albumDatas: [],      //歌手数据
        pageSize: 15,        //页面大小，一页有15条数据
        currentPage: 1,      //当前页，默认第一页
        singerStyle: [],           //风格
        activeName: '全部歌手'    //当前风格
      }
    },
    computed:{
      //计算当前表格中的数据
      data(){
        return this.albumDatas.slice((this.currentPage - 1)*this.pageSize,this.currentPage*this.pageSize)
      }
    },
    mounted(){
      this.singerStyle = singerStyle;
      this.getSingerList();
    },

    methods:{
      getSingerList(){
        getAllSinger()
          .then(res =>{
            this.currentPage = 1;
            this.albumDatas = res;
          })
      },
      //获取当前页
      handleCurrentChange(val){
        this.currentPage = val;
      },
      //根据类型显示对应的歌手
      handleChangeView(item){
        this.activeName = item.name;
        this.albumDatas = [];
        if(item.name == '全部歌手'){
          this.getSingerList();
        }else{
          this.getSingerOfSex(item.type)
        }
      },
      //根据性别查询对应的歌手
      getSingerOfSex(sex){
        getSingerOfSex(sex)
          .then(res =>{
            this.currentPage = 1;
            this.albumDatas = res;
          })
      },

    }
  }
</script>

<style lang="scss" scoped>
  @import '../assets/css/singer.scss';
</style>
